A reactor burns (0.50

PHYSICS · Single correct · A Level · Physics · Nuclear physics · Nuclear physics

Problem

A reactor burns 0.50 kg0.50\,\text{kg} of pure 235U^{235}\text{U}. Each fission releases 200 MeV200\,\text{MeV}, but neutrinos carry away 12%12\% of this energy, making it unavailable for practical use. The usable energy obtained from the fuel is closest to (a) 3.0×1013 J3.0\times10^{13}\,\text{J} (b) 3.6×1013 J3.6\times10^{13}\,\text{J} (c) 3.6×1014 J3.6\times10^{14}\,\text{J} (d) 4.5×1013 J4.5\times10^{13}\,\text{J}

Related theory

Browse the problem library